EP 3831974 A1 20210609 - GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET
Title (en)
GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET
Title (de)
KORNORIENTIERTES ELEKTROMAGNETISCHES STAHLBLECH
Title (fr)
TÔLE D'ACIER ÉLECTROMAGNÉTIQUE À GRAINS ORIENTÉS
Publication
Application
Priority
- JP 2018143898 A 20180731
- JP 2018143900 A 20180731
- JP 2018143901 A 20180731
- JP 2018143902 A 20180731
- JP 2018143904 A 20180731
- JP 2018143905 A 20180731
- JP 2019030059 W 20190731
Abstract (en)
A grain oriented electrical steel sheet includes the texture aligned with Goss orientation. In the grain oriented electrical steel sheet, when (α<sub>1</sub> β<sub>1</sub> γ<sub>1</sub>) and (α<sub>2</sub> β<sub>2</sub> γ<sub>2</sub>) represent deviation angles of crystal orientations measured at two measurement points which are adjacent on the sheet surface and which have an interval of 1 mm, the boundary condition BA is defined as [(α<sub>2</sub> - α<sub>1</sub>)<sup>2</sup> + (β<sub>2</sub> - β<sub>1</sub>)<sup>2</sup> + (γ<sub>2</sub> - γ<sub>1</sub>)<sup>2</sup>]<sup>1/2</sup> ≥ 0.5°, and the boundary condition BB is defined as [(α<sub>2</sub> - α<sub>1</sub>)<sup>2</sup> + (β<sub>2</sub> - β<sub>1</sub>)<sup>2</sup> + (γ<sub>2</sub> - γ<sub>1</sub>)<sup>2</sup>]<sup>1/2</sup> ≥ 2.0°, the boundary which satisfies the boundary condition BA and which does not satisfy the boundary condition BB is included.
IPC 8 full level
C22C 38/00 (2006.01); C21D 8/12 (2006.01); C21D 9/46 (2006.01); C22C 38/60 (2006.01); H01F 1/147 (2006.01)
CPC (source: EP KR RU US)
C21D 1/76 (2013.01 - EP US); C21D 3/04 (2013.01 - EP US); C21D 8/12 (2013.01 - RU); C21D 8/1205 (2013.01 - EP); C21D 8/1222 (2013.01 - EP KR US); C21D 8/1233 (2013.01 - EP US); C21D 8/1255 (2013.01 - EP US); C21D 8/1261 (2013.01 - EP); C21D 8/1272 (2013.01 - EP US); C21D 8/1283 (2013.01 - EP KR US); C21D 9/46 (2013.01 - EP KR US); C22C 38/00 (2013.01 - EP); C22C 38/001 (2013.01 - EP KR); C22C 38/002 (2013.01 - EP); C22C 38/004 (2013.01 - EP US); C22C 38/02 (2013.01 - EP KR RU US); C22C 38/04 (2013.01 - KR); C22C 38/12 (2013.01 - US); C22C 38/16 (2013.01 - EP); C22C 38/42 (2013.01 - KR); C22C 38/60 (2013.01 - KR RU); C23C 28/04 (2013.01 - EP); H01F 1/147 (2013.01 - KR); H01F 1/14783 (2013.01 - EP); H01F 1/16 (2013.01 - RU); H01F 1/18 (2013.01 - RU US); C21D 2201/05 (2013.01 - EP US); C22C 38/12 (2013.01 - EP); C22C 38/60 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3831974 A1 20210609; EP 3831974 A4 20220504; BR 112021000803 A2 20210413; CN 112469840 A 20210309; CN 112469840 B 20220708; JP 7028325 B2 20220302; JP WO2020027215 A1 20210812; KR 102457420 B1 20221024; KR 20210024614 A 20210305; RU 2764625 C1 20220118; US 11939641 B2 20240326; US 2021355557 A1 20211118; WO 2020027215 A1 20200206
DOCDB simple family (application)
EP 19843927 A 20190731; BR 112021000803 A 20190731; CN 201980049675 A 20190731; JP 2019030059 W 20190731; JP 2020534713 A 20190731; KR 20217002559 A 20190731; RU 2021101788 A 20190731; US 201917263824 A 20190731